› added 8 years ago

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TIL that inkjet printers made by companies such as HP and Epson lie to you by telling you your ink cartridges are empty before they really are.

Read more arstechnica.com

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VNBk TIL that not all documents of the JFK assassination were released to the public. When questioned about it Chief Justice Earl told reporters that it may not be released in their lifetime. That was more than 50 years ago and in 2017 they will be made public.
O5V7 TIL theaters used to have “cry rooms”: soundproof rooms at the back of theaters so mothers wouldn’t disturb others with their children
ne4Eo TIL There are classes in Japan that teach kids how to use the Soroban abacus to develop faster skills in arithmetic. After a few years they no longer even need to use a real abacus to perform fast mental calculations since they can already visualize an image of it
OVV7 TIL that getting annoyed at someone when we listen to them eating or breathing is called Misophonia, and it’s an actual neurological disorder.
NKxP TIL there are only four original citrus species (pomelo, citron, mandarin, and papeda). All others (lemon, lime, grapefruit, etc.) are hybrids.